EP0035723B1 - 2,4-Diamino-5-sulfamoylbenzolsulfosäuren und Verfahren zu ihrer Herstellung - Google Patents

2,4-Diamino-5-sulfamoylbenzolsulfosäuren und Verfahren zu ihrer Herstellung Download PDF

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Publication number
EP0035723B1
EP0035723B1 EP81101462A EP81101462A EP0035723B1 EP 0035723 B1 EP0035723 B1 EP 0035723B1 EP 81101462 A EP81101462 A EP 81101462A EP 81101462 A EP81101462 A EP 81101462A EP 0035723 B1 EP0035723 B1 EP 0035723B1
Authority
EP
European Patent Office
Prior art keywords
formula
phenyl
methylanilino
water
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81101462A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0035723A1 (de
Inventor
Karl Dr. Sturm
Roman Dr. Muschaweck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Priority to AT81101462T priority Critical patent/ATE4899T1/de
Publication of EP0035723A1 publication Critical patent/EP0035723A1/de
Application granted granted Critical
Publication of EP0035723B1 publication Critical patent/EP0035723B1/de
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
    • C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
    • C07D333/14—Radicals substituted by singly bound hetero atoms other than halogen
    • C07D333/20—Radicals substituted by singly bound hetero atoms other than halogen by nitrogen atoms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P7/00—Drugs for disorders of the blood or the extracellular fluid
    • A61P7/10—Antioedematous agents; Diuretics
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D307/52—Radicals substituted by nitrogen atoms not forming part of a nitro radical

Definitions

  • the invention relates to compounds of formula 1, which are assigned to the group of substituted 2,4-diamino-S-sulfamoylbenzenesulfonic acids, and their physiologically tolerable salts
  • R means furyl, thienyl or phenyl.
  • R Of primary interest as R are 2-furyl and 2-thienyl.
  • ammonium ion or substituted ammonium ions are suitable for salt formation.
  • the invention further relates to a process for the preparation of the compounds of the formula I.
  • the process is characterized in that compounds of the formula II in which Z means aryl, saponified under alkaline conditions and, if appropriate, the compound obtained is converted into the free acid or a salt.
  • any aromatic radical can be used as the radical Z in the starting material of the formula II; however, the simple to produce phenyl or cresyl esters are used with particular advantage for industrial synthesis.
  • the alkaline saponification of the esters is preferably carried out in an aqueous medium with an inorganic base, in particular with excess 1 to 5N sodium hydroxide solution or potassium hydroxide solution.
  • a dichloro compound of the formula III is reacted with N-methylaniline at a temperature between 120 and 140 ° C., advantageously working with an excess of the base and without the addition of a solvent.
  • N-methylanilino derivative of the formula IV obtained delivers the desired starting material of formula 11 in the subsequent reaction with an amine of the formula R-CH 2 -NH 2 , advantageously in excess and at a temperature between 120 and 140 ° C.
  • the alkaline saponification of the esters of the formula II to the end products of the formula I is preferably carried out with inorganic bases, particularly advantageously with aqueous sodium or potassium hydroxide solution.
  • inorganic bases particularly advantageously with aqueous sodium or potassium hydroxide solution.
  • unsubstituted phenyl esters of the general formula II can be saponified with 2N sodium or potassium hydroxide solution under reflux within 2-3 hours.
  • High molecular weight esters Phenol components may require the addition of a water-miscible organic solvent such as dioxane, glycol monomethyl ether or diglyme and / or an extension of the reaction time.
  • the reaction solution is adjusted to a pH between 7 and 8, advantageously with dilute hydrochloric acid, whereupon the sodium or potassium salt of the end product precipitates in crystalline form at room temperature.
  • the starting material of formula II used was an unsubstituted phenyl ester
  • the phenol formed remains in the aqueous mother liquor and the product which has been sucked off and washed with water is already very pure.
  • a water-soluble phenol is formed during the saponification, the air-dried crude product is freed from the phenol in question by extraction with a suitable organic solvent such as, for example, diethyl ether, diisopropyl ether, toluene or ethyl acetate.
  • a suitable organic solvent such as, for example, diethyl ether, diisopropyl ether, toluene or ethyl acetate.
  • it is recrystallized from water or an alcohol-water mixture.
  • the alkali salts which are relatively readily soluble in water with a weakly alkaline reaction preferably the sodium or potassium salts of the compounds according to the invention.
  • the most easily water-soluble sodium salts are particularly suitable for injection solutions, while the less soluble potassium salts are particularly suitable for all oral pharmaceutical preparations.
  • Calcium, magnesium or ammonium salts of the compounds can also be suitable for special therapeutic purposes. These salts are advantageously precipitated in crystalline form from an aqueous solution of the sodium salt by adding a multi-molecular excess calcium chloride, magnesium chloride or the amine hydrochloride in question, or, if they are more water-soluble than the sodium salt, using an ion exchanger.
  • salts of the compounds according to the invention with basic, potassium-retaining compounds such as, for example, amiloride or triamterene or with basic antihypertensives such as, for example, clonidine, dihydralazine or ⁇ -blockers are also of particular pharmacological importance.
  • the compounds are not very stable. If they are desired in this form, it is possible, for example, to filter an aqueous solution of the sodium salt over an acidic ion exchanger and to freeze-dry the filtrate.
  • the compounds according to the invention are excellent furosemide-type salidiuretics with extremely high potency, which also have a particularly low potassium excretion and a strong uricosuric action.
  • the 2-furfurylamino-4- (N-methylanilino) -5-sulfamoylbenzenesulfonic acid sodium obtainable according to Example 1 is distinguished by its surprisingly high salidiuretic activity and its markedly stronger compared to the 4-phenoxy compound known from DE-A 2718 871 uricosuric effect.
  • tablets, dragees or capsules with 0.1 to 50 mg of active substance are preferred for oral administration.

Landscapes

  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Medicinal Chemistry (AREA)
  • Diabetes (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Furan Compounds (AREA)
  • Heterocyclic Compounds Containing Sulfur Atoms (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP81101462A 1980-03-11 1981-02-28 2,4-Diamino-5-sulfamoylbenzolsulfosäuren und Verfahren zu ihrer Herstellung Expired EP0035723B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81101462T ATE4899T1 (de) 1980-03-11 1981-02-28 2,4-diamino-5-sulfamoylbenzolsulfosaeuren und verfahren zu ihrer herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803009229 DE3009229A1 (de) 1980-03-11 1980-03-11 2,4-diamino-5-sulfamoylbenzolsulfosaeuren und verfahen zu ihrer herstellung
DE3009229 1980-03-11

Publications (2)

Publication Number Publication Date
EP0035723A1 EP0035723A1 (de) 1981-09-16
EP0035723B1 true EP0035723B1 (de) 1983-10-05

Family

ID=6096821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101462A Expired EP0035723B1 (de) 1980-03-11 1981-02-28 2,4-Diamino-5-sulfamoylbenzolsulfosäuren und Verfahren zu ihrer Herstellung

Country Status (14)

Country Link
US (1) US4341773A (fi)
EP (1) EP0035723B1 (fi)
JP (1) JPS56142255A (fi)
AR (1) AR227777A1 (fi)
AT (1) ATE4899T1 (fi)
AU (1) AU537230B2 (fi)
CA (1) CA1155450A (fi)
DE (2) DE3009229A1 (fi)
DK (1) DK109081A (fi)
ES (1) ES8201996A1 (fi)
FI (1) FI69459C (fi)
HU (1) HU187322B (fi)
IL (1) IL62318A (fi)
ZA (1) ZA811573B (fi)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2406972A1 (de) * 1974-02-14 1975-09-04 Hoechst Ag Verfahren zur herstellung von 5-sulfa- moylanthranilsaeuren
DE2453548A1 (de) * 1973-09-07 1976-03-18 Hoechst Ag Substituierte aminobenzoesaeurederivate und verfahren zu ihrer herstellung
DE2718871A1 (de) * 1977-04-28 1978-11-09 Hoechst Ag Salidiuretisch wirksame 5-sulfamoyl- orthanilsaeuren und verfahren zu ihrer herstellung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE768706A (fr) * 1970-06-18 1971-12-20 Leo Pharm Prod Ltd Nouveaux acides sulfamoylbenzoiques
DE2232457A1 (de) * 1972-07-01 1974-01-10 Boehringer Mannheim Gmbh Neue 3-alkyl-4-sulfamoylanilinderivate
DE2334973A1 (de) * 1973-07-10 1975-01-23 Boehringer Mannheim Gmbh Neue biphenyl-derivate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2453548A1 (de) * 1973-09-07 1976-03-18 Hoechst Ag Substituierte aminobenzoesaeurederivate und verfahren zu ihrer herstellung
DE2406972A1 (de) * 1974-02-14 1975-09-04 Hoechst Ag Verfahren zur herstellung von 5-sulfa- moylanthranilsaeuren
DE2718871A1 (de) * 1977-04-28 1978-11-09 Hoechst Ag Salidiuretisch wirksame 5-sulfamoyl- orthanilsaeuren und verfahren zu ihrer herstellung

Also Published As

Publication number Publication date
AR227777A1 (es) 1982-12-15
ATE4899T1 (de) 1983-10-15
JPS56142255A (en) 1981-11-06
ES500103A0 (es) 1982-01-01
EP0035723A1 (de) 1981-09-16
ES8201996A1 (es) 1982-01-01
AU537230B2 (en) 1984-06-14
DK109081A (da) 1981-09-12
DE3009229A1 (de) 1981-10-15
CA1155450A (en) 1983-10-18
US4341773A (en) 1982-07-27
AU6819681A (en) 1981-09-17
ZA811573B (en) 1982-04-28
DE3161077D1 (en) 1983-11-10
FI810724L (fi) 1981-09-12
FI69459C (fi) 1986-02-10
IL62318A0 (en) 1981-05-20
HU187322B (en) 1985-12-28
FI69459B (fi) 1985-10-31
IL62318A (en) 1985-02-28

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